256891791

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{12941}}^1$

素因数の和:13466

約数の個数: 16

約数和(自身を含む): 369623520

約数和(自身を除く): 112731729

約数列:

[1, 3, 13, 39, 509, 1527, 6617, 12941, 19851, 38823, 168233, 504699, 6586969, 19760907, 85630597, 256891791]

約数ペア:

[(1, 256891791), (3, 85630597), (13, 19760907), (39, 6586969), (509, 504699), (1527, 168233), (6617, 38823), (12941, 19851)]